ST EVAL-L9960 Manuale utente

June 2017 DocID030232 Rev 2 1/19

UM2164

User manual

EVAL-L9960/L9960T

Introduction

The EVAL-L9960 and EVAL-L9960T are evaluation boards designed to provide the user a

platform for the L9960 and L9960T, that are integrated H-Bridge (Twin for L9960T) for

resistive and inductive loads for automotive applications, such as throttle control actuators

or exhaust gas recirculation control valves.

The board offers all the main input/output capabilities needed to drive a DC motor properly

and to provide diagnostic functionalities.

Full diagnostic is available through SPI. By using SPI communication, it is possible to

program L9960 and L9960T while the application is running (e.i. set the current limitation).

A dedicated pin array allows connecting easily a SPC5 discovery+ board and the EVAL-

L9960/L9960T. In association with the discovery board SPC560P-DISP a dedicated SW

allows controlling a motor control application by using a PC via a USB port.

The device is an integrated H-Bridge for resistive and inductive loads for automotive

applications, such as throttle control actuators or exhaust gas recirculation control valves.

The driving strategy is enhanced by configurable PWM / DIR pins as IN1/IN2.The H-Bridge

contains integrated free-wheel diodes. In case of freewheeling conditions, the low side or

the high side transistor is switched on in parallel of its diode to reduce power dissipation.

The integrated Serial Peripheral Interface (SPI) allows device parameters adjustment and to

control all operating modes and read out diagnostic information.

Detailed failure diagnostics on each channel is provided via SPI: short circuit to battery,

short circuit to ground, short circuit overload, over temperature. Open-load can be detected

in ON condition, for the widest application ranges.

The EVAL-L9960 and EVAL-L9960T boards are suitable for both beginners and expert

users working in standalone mode connected with any control system or combined with all

SPC5 Discovery+ boards through a computer graphic interface or though embedded

application examples.

The board is compatible with both 5V and 3.3V control systems

www.st.com

Contents UM2164

2/19 DocID030232 Rev 2

Contents

1 Hardware description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.1 Application Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2 EVAL-L9960 & L9960T: board description . . . . . . . . . . . . . . . . . . . . . . . 6

2.1 EVAL-L9960 & EVAL-L9960T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.2 EVAL- L9960 / L9960T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.2.1 Jumper description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.2.2 Connectors & Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.2.3 L9960T SPI configurator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.3 Test Point description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3 Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

3.1 Jumper setting using L9960 & SPC5 Discovery+ board . . . . . . . . . . . . . 12

3.2 Jumper setting using L9960T & SPC5 Discovery+ board . . . . . . . . . . . . 12

4 Getting started with EVAL-L9960 & EVAL-L9960T . . . . . . . . . . . . . . . . 14

Appendix A Board layout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

A.1 EVAL-L9960 & EVAL-L9960T PCB Layout. . . . . . . . . . . . . . . . . . . . . . . . 15

A.2 EVAL-L9960 & EVAL-L9960T schematic . . . . . . . . . . . . . . . . . . . . . . . . . 17

Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

DocID030232 Rev 2 3/19

UM2164 List of tables

List of tables

Table 1. Jumpers descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Table 2. Connector & Device description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Table 3. Test point description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Table 4. Jumpers setting using L9960 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Table 5. Jumpers setting using L9960T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Table 6. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

List of figures UM2164

4/19 DocID030232 Rev 2

List of figures

Figure 1. Application Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Figure 2. EVAL-L9960 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Figure 3. EVAL-L9960T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Figure 4. Gate driver board (L9907) - components and connectors - top view . . . . . . . . . . . . . . . . . . 7

Figure 5. SPC56 Discovery + Connector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Figure 6. Motor A Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Figure 7. Motor B Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Figure 8. L9960T SPI configurator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Figure 9. PCB Layout – Top view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Figure 10. Gate driver board - PCB Layout – Bottom view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Figure 11. EVAL-L9960 & EVAL-L9960T schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

DocID030232 Rev 2 5/19

UM2164 Hardware description

1 Hardware description

The EVAL-L9960/L9960T is an evaluation board designed to allow the whole hardware

configuration flexibility, giving the user total access to all pins of the L9960/L9960T.

The main features are:

Total accessibility to all devices pins

Full HW compatibility with the SPC56 discovery boards through the standard SPC56

Discovery+ connector, 0.1” - 4x36 pin.

Possibility to connect generic microcontroller boards(a) by using a customised adapter.

1.1 Application Block Diagram

Figure 1. Application Block Diagram

a. A dedicated connector allows plugging the EVAL-L9960/L9960T in a SCP5 Discovery+ board easily. Further

microcontroller boards can be connected to drive the evaluation boards by using an adaptor.

EVAL-L9960 & L9960T: board description UM2164

6/19 DocID030232 Rev 2

2 EVAL-L9960 & L9960T: board description

2.1 EVAL-L9960 & EVAL-L9960T

Figure 2. EVAL-L9960

Figure 3. EVAL-L9960T

DocID030232 Rev 2 7/19

UM2164 EVAL-L9960 & L9960T: board description

Figure 4. Gate driver board (L9907) - components and connectors - top view

EVAL-L9960 & L9960T: board description UM2164

8/19 DocID030232 Rev 2

2.2 EVAL- L9960 / L9960T

2.2.1 Jumper description

2.2.2 Connectors & Device

Table 1. Jumpers descriptions

Name Description Type

J5 Vcc source jumper:

- 2-1= VcCC5= Vcc Micro

- 3-2= VDD5 (L7805CDT-TR)

Configurabletwopositions

jumper

Vcc source jumper:

- 2-1= VDDIO= VDD5

- 2-3= VDDIO= 3,3V Micro

- 2-4= VDDIO= VDD5 (L7805CDT-TR)

- 2-5= VDDIO= 3V3 LD1117DT33CTR

Configurable three

positions jumper

J7 CSN2 Signal source jumper

1-2= CSN2=CSN1

3-2= Micro

Configurabletwopositions

jumper

J8 SDI2 Signal source jumper

- 1-2= SDI2=SDI1

- 3-2= Micro

Configurabletwopositions

jumper

J9 SCK2 Signal source jumper

- 1-2= SCK2= SCK1

- 3-2= Micro

Configurabletwopositions

jumper

J10 SDO2 Signal source jumper

- 1-2= SDO2= SDO1

- 3-2= Micro

Configurabletwopositions

jumper

J11 NDIS2 pull down resistor

- ON R=10k pull down ON/OFF jumper

J12 NDIS1 pull down resistor

- ON R=10k pull down ON/OFF jumper

J13 DIS2 pull up resistor

- ON R=10k pull up ON/OFF jumper

J14 DIS1 pull up resistor

- ON R=10k pull up ON/OFF jumper

Table 2. Connector & Device description

J1 Motor A Connector Screw

J2 Motor B Connector (Only for EVAL-L9960T) Screw

J3 VS Connector Screw

DocID030232 Rev 2 9/19

UM2164 EVAL-L9960 & L9960T: board description

Figure 5. SPC56 Discovery + Connector

Figure 6. Motor A Connector

J4_1,J4_2 Microcontroller connector Multipin

U1 L9960 / L9960T POWERSSO36

U2 5V Voltage Regulator L7805CDT-TR DPAK

U3 3,3 V Voltage Regulator LD1117DT33CTR DPAK

Table 2. Connector & Device description (continued)

EVAL-L9960 & L9960T: board description UM2164

10/19 DocID030232 Rev 2

Figure 7. Motor B Connector

2.2.3 L9960T SPI configurator

Figure 8. L9960T SPI configurator

2.3 Test Point description

I: Input,

O: Output

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